The gpx file and a gpx viewer app will allow your GPS enabled phone or tablet to guide you on the cycleway. Mobile data will not be required, but would enable a choice of maps to appear along with the waypoints.
Download the gpx file (here), save and unzip (an unzipping app is required for this). Use a gpx viewer app, such as GPXViewer, to view the file. The lines are the water race (the more wiggly line) and the tramway. Touch the waypoints for information. Opening the details dialogue for the waypoint will provide a link to these web site pages.